FACT #1
A brain imaging study funded by the National Institute on Drug Abuse has shown that regular users of marijuana have less gray matter than nonusers of the drug in the orbitofrontal cortex, a brain region that contributes to impulse control, decision making, and learning. (NIDA)
FACT #2
THC (delta-9-tetrahydrocanabinol) is the psychoactive ingredient found in marijuana. Marijuana concentrates contain extraordinarily high levels ranging from 40 to 80 percent THC amounts. This form of marijuana can be up to four times stronger in THC content than high grade marijuana, which normally measures around 20 percent THC levels. (DEA)
FACT #3
Marijuana smokers experience the same health problems as tobacco smokers: bronchitis, emphysema, and bronchial asthma. Extended use is associated with anti-motivational syndrome, lung damage, and risk to reproductive systems. (DEA)